“It did happen — I saw it,” he said. "It was one television. I saw it. George, it did happen.

“There were people that were cheering on the other side of New Jersey — where you have large Arab populations,” Trump continued.

“I know it might not be politically correct for you to talk about it, but there were people cheering … as those building came down,” the New York business mogul added. "And that tells you something. Not good.”

Rumors have long circulated that Muslim Americans applauded the attacks In Newark, N.J., and Paterson, N.J. Multiple local leaders and law enforcement officials there, however, deny that those accounts are accurate.

The Anti-Defamation League criticized Trump’s account as “factually challenged” during a statement released Sunday.

“It is unfortunate that Donald Trump is giving new life to long-debunked conspiracy theories about 9/11,” the organization said.